Winding machine



Nov. 25, 1924. 1,516648 H. SCHWEITER WINDING MACHINE Filed Feb. 13 1924 ra- 5 1 Z Patented Nov. 25, 1924.

UNITED STATES HANS SCHWEI'IER, 01 EORGIEN, SWITZERLAND.

wmnnw MACHINE.

' Application filed Fcbruary 13, 1924. Serial N0. 692,578.

T0 all wkom z't mag; ooncern:

Be it known that I, HANS SGHWEITER, a Swiss citizen, residin at H0rgen, in the Canton of Zurioh, Swzerland, have invented a new and useful Improvement in Winding Machines, of which the following is a specification.

So called cr oss swifts; that is to say swifts :for Cross windings are alrea-dy known. However in the hitherto known cross swifts the usual reciprocatory yarn guides are used, which in some cases engage by means of a stud in the slit of a laterally mounted drum.

F urthermore' it is known in cross winding machines to use a yam guide which is guided by a resilient 1'0d and a drum having a driving slot.

The object of my invention is to enable yarn to be cross wound on a swift a1; an unusually great yarn spee'd whilst preventing to the greatest possible extent damage to the yarn. The achievement of this object is of great importance particularly for superfine spinning, for example silk spinning.

I attain this object by the means illustrated irrthe aocompanying two sheets of drawingg, wherein- Figure 1 is an elevation,

Figure 2 a side view and Figure 3 a detached plan view illustrating a oonstructional example of the inven tion.

Figure 4 is an elevation,

Figure 5 a plan view and Figure 6 a side view in vertical, section of a detail.

Referrin to the drawings, 1 indicates the swift on w ich the two hanks 2 am being wound. A drum. 3 is rotatabl mounted above the swift and is provi de3 withdwo driving slots 4 arran;ed in an inclined direction relative to the drum axis. A chain wheel 5 is fixed on the shaft of the drum 4 and is connected up by a chain 6130 a ohain wheel 7 driven by a motor orthe like. The drum is positively driven b this means. Each driving sl ot 4 is inten ad to impart to a thread guide 8 a reciprocatofy inotionx The rear side of each yarn guide 8 is so curved that it fits the curvature of the drum 3. A cylindrical member 9 pressed out cf the rear wall of the hollow thread guide 8 engages in the corresp'onding driving slot of the drum. The freut Wall of the thread guide 8 is attached t0 the rear wall by an edge fold or seam and has a vertical open slot 10 for guiding the thread 11. The substantially c1rcular yar guide terminates at the bottom in a o or like manner whereby the lower limiting edges 12 of the guide slot 10 are perpendicular to the dr'um axiS and thereb prevent the thread from coming lateral y out of the lower part of the slot 10 when the guide is reciprocated.

The front Wall of theguide furthermore has an open horizontal slot 13 for reception of a gmde rod 14 which guides the yarn 1uide in its reciprocatory movement and olds it against the drum 3. The freut wall 01 the thread guide 8 is .so curved that the thread automatically enters'the slot 10 011 the first to and fro moement of the yarn guide and that the resilient guide rod 14 is caused to band slightly outwards when the thread guide is pushed upwards from -below into its operative osition and then snaps into the sl ot 13, w reby the placing of the thiead gide on the drum is rendered considerably more easy. 0 remov the yarn guide from the drum it is only neoessa t0 bend the rod 14 slightly outwards an? remove the guide upwardly or downwardly. As the metal guide only weighs about two grammes, it can operate at very high speeds without knocks or noise, whereby theefliciency of the machine is co'nsiden ably increased. The guide rod 14 is adjustably carried relative 120 the drum 3 by two arms 16 depending from the drumbeaflngs and by slott ed plates 17.

18 are pointed arcuate-like guides whioh are attached 120 the machine frame at the front and which automatically guide the threads at their correct place of approach above the middle of the throw of the movable yarn guides.

Each thread guide 8 may have tyvo vertical guide slots separated by a wall in case it is intended to guide two threads.

The said guides may be solid instead of hollow, assuming that they are very light. It will be appreciated that by m invention the yarn or thread in a swift 01 cross winding is guided by means of a guide previou sly sugge'sted for cross winding ma chines, the ide being guided on the one hand by a mm having a driving slot and 0n the other hand b a resilient rod. A thread guide of this ind can be 1 roduced in a very light weight and it is therefore possible to recipmcate i; at high speed. with- 0ut liberating large active forces.

I claim:

l. A swift machine for cross windin 00m rising in combinatioml, a rotatab e swi a drum havirig a dr'nn slot; a Iesilient rod 011 the machine an a guide guided on the one' band by thedrum and on the other band by the resilient rod.

2. A swiffi; machine for cross windings comprising in comination a rotatable swift, a drum mounted ab0ve the swift; positive driving means connected' to the said drum; a tesi lient rod adjuStably mounted longitudinally of the drum; driving slots in the drum; zmd thread guides engagin the sai riving slots anti the said rod an retained in their paths of movement by cooperation of the said drum und rod. v 1 v 3. A swift machinfor cross windi1 1gs comprisin in combination a rotatable swift, a mm mounted above the swift; positive driving means connected to the said drum; a resilient rod. adjustably mounbed longitudinally 0f the drum; driving slots in the drum; und thread ides engaging the said driving slots an the said .1'0 and arcuate pointed guide -wires for the threads to pass through before entering the said thread guides. v

Signed at Zurich, in the Canton of Zurieb, Switzerland, this 24th day 'of J anuary 1924:.

HANS SCHWEITER. Witnesses:

A. F. CALCOEN, JAMES R. WILKINB, Jr. 

